Ответ:
\(\frac{1}{4}=\frac{4}{16}\).
\(9\frac{9}{16}+2\frac{1}{4}=9\frac{9}{16}+2\frac{4}{16}=11\frac{13}{16}\).
Ответ: 11 13/16.
\(\frac{1}{4}=\frac{4}{16}\).
\(9\frac{9}{16}+2\frac{1}{4}=9\frac{9}{16}+2\frac{4}{16}=11\frac{13}{16}\).
Ответ: 11 13/16.